Originally Posted by
cptkris
Because the speed holding ability of the bus is quite lacking in certain phases of flight. Being comfortable with disconnecting both or either the AP and ATHR can save a lot of headaches with flap over speeds etc.
I would regularly, hand fly the 319/320/321 with A/T Active. Never saw the Speed Mode go wonky. Say Expressway Visual into KLGA, , at Peths go , "Auto Pilot Off", "Flight Directors Off" , "Speed Push", then Gear Down , Landing check. Hand fly, along the Long Island expressway, in Speed Mode. Pick up the VASI rolling out on final...
Same going into Las Vegas from the East, for the 19L/19R Visuals, or Slam Dunk into KSFO, from the North, ... "have you got the San Mateo bridge? cleared Quiet Bridge Visual..At that point, you better dive down, Autopilot Off, Flight Directors Off, Speed Push in the right turn.. Forget the Flight Directors "OFF" and you could be in a world of hurt..
Maybe you forgot to Activate Approach first, once..then when you go "Speed Push", the engines roar up to give you 250 knots..